1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MAVERICK [17]
3 years ago
14

Evaluate each expression 9y2 - 7 for y =3

Mathematics
1 answer:
lesantik [10]3 years ago
7 0
9 y² - 7   for y = 3

9 * 3² - 7 = 

9 * 9 - 7 =

81 - 7 => 74 


You might be interested in
A car requires 22 litres of petrol to travel a distance of 259.6 km.Find
Anon25 [30]

Answer:

Step-by-step explanation:

1. A car requires 22 litres of petrol to travel a distance of 259.6 km

what is the distance that the car can travel on 63 ltr of petrol

22ltr = 259.6km

63ltr=

cross multiply

{63 x 259.6}/22 = 16354.8/22 = 743.4 km

A car requires 22 litres of petrol to travel a distance of 259.6 km, it would require 63 ltr of petrol to travel 743.4km

2. To travel a distance of 2013.2 km

we would need to calculate the amount of fuel

A car requires 22 litres of petrol to travel a distance of 259.6 km

what amount of fuel would it require to travel 2013.2km

22ltr = 259.6km

xltr = 2013.2km

x is the value of petrol to cover 2013.2km

cross multiply

(2013.2 x 22)/259.6

44290.4/259.6 = 170.610169492≈170.6 ltr

A car requires 22 litres of petrol to travel a distance of 259.6 km, it would require 170.6 ltr of petrol to travel 2013.2km

if 1ltr is $1.99

170.6 ltr is (170.6 x 1.99)/1 = $339.494≈$339.5

The price of fuel consumed for 2013.2 km at 1 liter of petrol at $1.99 is $339.5

5 0
2 years ago
What is the value of x?
9966 [12]
<span>What is the approximate circumference of the circle? Use π ≈ 3.14. Circle A with radius 18 feet. 21.1 feet 36 feet 56.5 feet 113 feet PLZ help</span>
3 0
2 years ago
Which costs more per gallon? 5 gallons for $12.50 or 11 gallons for $26.40
Effectus [21]

Answer: 5

Step-by-step explanation:

If;

5 gallons = $12.50 / 5 = $2.50/gallon

11 gallons = $26.40 / 11 = $2.40/gallon

In conclusion, 5 gallons cost more per gallon than 11.

6 0
3 years ago
What is the constant in this algebraic expression? 7d+2 I need help
snow_lady [41]
It is 2 because no variable
6 0
3 years ago
What is 1/144 as an expression using a negative exponent
MrRissso [65]

ANSWER

{12}^{ - 2}

EXPLANATION

The given expression is

\frac{1}{144}

This is the same as:

\frac{1}{12 \times 12}

In index notation, we write this as

\frac{1}{ {12}^{2} }

To write this as a negative index, we use the property:

\frac{1}{ {a}^{m} }  =  {a}^{- m}

This implies that;

\frac{1}{ {12}^{2} }  =  {12}^{ - 2}

3 0
2 years ago
Other questions:
  • How many tablespoon are equivalent to 3 pints?
    8·2 answers
  • Which equation illustrates the multiplicative inverse property?
    13·1 answer
  • 3) -x + 5 = -11x + 25
    6·1 answer
  • A ratio that is equivalent to 60:125
    14·1 answer
  • Jack is paid $54 for working 9 hours how many dollars would he earn for working 6 hours​
    15·2 answers
  • The measure of &lt;rate can be represented by the expression (6x+12).​
    7·2 answers
  • If the equation of the line is y=-5.9x+91.9 . Which statement is false?
    14·1 answer
  • Write the inequality in words 1/3n-10&gt;22​
    6·2 answers
  • Giving brainlist to whoever answers
    5·2 answers
  • It took a car 4 hours to travel 180 miles. If the car drove a steady speed, how fast was it going?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!